body {
    font-family: 'Source Sans Pro', sans-serif;
    margin: 0;
    font-size: 22px;
}
.content {
    margin: 40px 10%;
}
.constraints {
    padding: 20px 10%;
    margin-bottom: 10px;
    background-color: #ededed;
}
.title {
    font-weight: bold;
    font-size: 48;
    margin-bottom: 20px;
}
.subtitle {
    font-size: 18px;
}
.embed {
    padding-top: 10px;
    height: 550px;
}
img {
    display: inline-block;
    max-width: 25vw;
}
li {
    margin-top: 0.5em;
    margin-bottom: 0.5em;
}
.example {
    box-sizing: border-box;
    width: 100%;
    background-color: #ddd;
    color: black;
    border: none;
    padding: 10px;
    overflow: hidden;
    text-align: center;

    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
}

.about {
    position: relative;
    width: 100%;
    background-color: #e0e0e0;
    margin: 0;
    padding: 15px 10%;
    padding-bottom: 40px;
    box-sizing: border-box;
    font-size: 18px;
    min-height: -webkit-calc(10vw);
}
.ralpht {
    background-image: url(../ralpht.jpg);
    background-size: cover;
    position: absolute;
    left: 20px;
    width: 50px;
    height: 50px;
    width: -webkit-calc(10vw - 40px);
    height: -webkit-calc(10vw - 40px);
    width: calc(10vw - 40px);
    height: calc(10vw - 40px);
    margin-right: 20px;
    border-radius: 100px;
    border: 2px solid white;
    box-shadow: 0px 1px 2px black;
}
.about>.title {
    font-size: 22px;
    margin-bottom: 10px;
}